HAWAII ! ! ! ! TSUNAMI THREAT AFTER MAG. 7.4 QUAKE STRIKES PACIFIC OCEAN - RUSSIA

A severe Magnitude 7.4 earthquake has struck in the north Pacific Ocean, off the coast of Russia.  The quake took place at a shallow depth of 48 miles and Tsunami Threat Warnings have gone out - INCLUDING HAWAII!

 

ZCZC
WEPA40 PHEB 200701
TSUPAC

TSUNAMI MESSAGE NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0701 UTC SUN JUL 20 2025

...PTWC TSUNAMI THREAT MESSAGE...


**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

 THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
 UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
 MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

 NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
 ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
 INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

  * MAGNITUDE      7.5
  * ORIGIN TIME    0649 UTC JUL 20 2025
  * COORDINATES    52.5 NORTH  160.7 EAST
  * DEPTH          77 KM / 48 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA


EVALUATION
----------

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED
    OFF THE EAST COAST OF KAMCHATKA, RUSSIA AT 0649 UTC ON
    SUNDAY JULY 20 2025.

  * BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS
    TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 300 KM
    OF THE EARTHQUAKE EPICENTER.


TSUNAMI THREAT FORECAST
-----------------------

  * HAZARDOUS TSUNAMI WAVES FROM THIS EARTHQUAKE ARE POSSIBLE
    WITHIN 300 KM OF THE EPICENTER ALONG THE COASTS OF

      RUSSIA.


RECOMMENDED ACTIONS
-------------------

  * GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS
    SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL
    POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN
    EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.

  * PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT
    FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND
    LOCAL AUTHORITIES.


ESTIMATED TIMES OF ARRIVAL
--------------------------

  * ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
    FOR PLACES WITH A POTENTIAL TSUNAMI THREAT. ACTUAL ARRIVAL
    TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
    LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
    WAVES CAN BE FIVE MINUTES TO ONE HOUR.

    LOCATION         REGION             COORDINATES    ETA(UTC)
    ------------------------------------------------------------
    PETROPAVLOVSK    RUSSIA            53.2N 159.6E   0728 07/20


POTENTIAL IMPACTS
-----------------

  * A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
    CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
    FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

  * IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
    THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
    OF THE SHORELINE.

  * IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
    THE TIME OF THE MAXIMUM TSUNAMI WAVES.

  * PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
    CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

  * THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
    THE SITUATION WARRANTS.

  * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV.

  * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
    WWW.TSUNAMI.GOV.

  * COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
    CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
    SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
    WWW.TSUNAMI.GOV.

  * COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
    BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
    NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
    AT WWW.TSUNAMI.GOV.

$$



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UPDATE 5:33 AM EDT --

A Tsunami Threat Warning is now issued for HAWAII.   Tsunami waves from an earthquake in Russia may reach the shores of Hawaii within hours:

 ZCZC
WEHW40 PHEB 200703
TSUHWX

HIZ001-003-006>007-009-016>018-023-026-029>035-037>050-051>054-
200903-
/O.NEW.PHEB.TS.A.0002.250720T0703Z-000000T0000Z/

BULLETIN
TSUNAMI MESSAGE NUMBER   1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
903 PM HST SAT JUL 19 2025

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WATCH

A TSUNAMI WATCH IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE AT
0903 PM HST.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

   ORIGIN TIME - 0849 PM HST 19 JUL 2025
   COORDINATES - 52.5 NORTH  160.7 EAST
   LOCATION    - OFF THE EAST COAST OF KAMCHATKA  RUSSIA
   MAGNITUDE   - 7.5  MOMENT

EVALUATION

 BASED ON ALL AVAILABLE DATA A TSUNAMI MAY HAVE BEEN GENERATED BY
 THIS EARTHQUAKE THAT COULD BE DESTRUCTIVE ON COASTAL AREAS EVEN
 FAR FROM THE EPICENTER. AN INVESTIGATION IS UNDERWAY TO DETERMINE
 IF THERE IS A TSUNAMI THREAT TO HAWAII.

 IF TSUNAMI WAVES IMPACT HAWAII THE ESTIMATED EARLIEST ARRIVAL OF
 THE FIRST TSUNAMI WAVE IS

                     0243 AM HST SUN 20 JUL 2025

FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS
WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.

$$



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